Field 24: Function Code

Format: n3

Description: See table below for possible values.

Value

Use

200

Original 1220 message

201

First repetition of 1220

202

Second repetition of 1220

203

Third repetition of 1220

400

Original 1420 message

401

First repetition of 1420 message

402

Second repetition of 1420

403

Third repetition of 1420

831

Used for session management messages

500

Used in reconciliation messages